Sump pump



June 11, 1957 E. c. LASTEIR, sR.. ETAL SUMP PUMP 2 Sheets-Sheet 1 FiledMay 1, 1956 INVENTORS EDWAR D c. LASTE R 82- THEOUQRE LPMENGE. SR.

wmu wm Arm-02MB Vs June 11, 1957 E. c. LASTER, sR.. ETIAL 2,795,197

- SUMP PUMP Filed May 1, 1956 2 Sheets-Sheet 2 INVENTORS EDWAZ'D c.LASTER s2 v-Heooaae MENGrE 52..

ATTORNEY 5 -SU1VIP PUMP Edward C. Laster,'fSr., and Theodore L. Menge,Sr., Shreveport, La.

Application May 1,195.6, Serial'No. 581,883

6 Claims. I ((21. 103 262 The present invention relates to asump pump.

An object of the present invention is 'to provide a pump for suckinga'body of liquid from-a sump .in which the suction is created in thevortex of a spirally moving stream of liquidunder pressure.

Another object of the present in'vention is to provide a sump pump whichhas no moving partsyone which is easily assembled and disassembled "forcleaning, and onewhich is highly eflfective inaction.

A further object of the presentinvention-isto pro- -vi'de-a sump pumpwhich is of simplestructure, one sturdy in construction and oneeconomical to manufacture and assemble.

These and other objects andadvantagesof the present invention willbefully apparent from the following description when taken in connectionwith the annexed drawings, in which:

Figure 1 ha perspective view of the sump pump of-the present inventionshowing it in operative'position installed on a drum.

Figure 2 is a sectional view on an enlarged scale taken :on theline 2-2of Figure 1.

Figure '3 is a sectional view taken on the line 3-3 of Figure 2.

:Figure '4 is tanexploded perspective view of the components of thesumppump of the present'invention.

Figure 5 is a perspective view of anotherform of the :sumppump accordingto the present invention.

.Figure 6 isua sectional viewtaken on the'l-ine 6--'6 of Figure -5, and

Figure 7 is -a'view in section of a'further'form of the sump pumpaccording to the present invention showing it connected at each'end to avalved conduit.

I Referringto-Figures 1 to 4 or" the drawings, the sump pump ofthepresent invention comprises an upstanding body it) having an inletpassage 11 extending inwardly from the lower end thereof and .an upright.wall 12 extending about the .perimeter of the upper end thereof. Theend of thebody surrounding the inlet passage :11 is .of reduced sectionand is threaded and a threaded nipple 13 is detachably secured to that.end ofthe body. The upper end of a pipe 14 is screwed into thenipple1'3 and constitutes a conduit for connectingthe body to .a closed spaceto be evacuated such as the drumshown in Figure 1,.and indicated by thereference numeral 15. The. body 10 isprovided with a well 16intheportion @of the body adjacent the upper end and terminating point .ofthe-inletpassage 11. The portion of the body 10 above the top of thewell 16 is provided with a spiral .passage 17 extending around the Well16 and having one endterminating in a tangentially disposed second inlet'18 which is inscornmunication with the exterior of the --:body' 1fi.The-other end'of the-spiralpassage '17 is in communication with the well16.

Means is provided for connecting thesecond inlet .18 to a source'of-fluid under pressure. Specifically, this *means consists in anoutwardly extending boss having internal :threads as at 21 in Figure 3,for the attachment having :a flat bottom 24 and an upstanding rim 25 ex-'tending rabout .the boundary of the bottom 24 is positioned so that"the bottom 24 bridges and closes the spiral passage 17 with the rimengaging, by press fitting or :other'means, :the inner surface of thelower portion of theaupiight wall 12. Thebottom 24 of the cupmember 23'is provided with a "discharge orifice 26 disposed concentrically withrespect to "the inlet passage 11 and incommunication with theinner endof the spiral passage 17.

A deflector plate, indicated generally'by the reference numeral27,having'a'flat top 28and a skirt 29 depending from the'flat' top 28 ispositioned'so'that the flat top -28 -is--spaced fromithe cup memberbottomi24 w'ith'the skirt 29 ofthe-deflector plate 27 engaging-theinner'surfiace of the upper portion .of theupright wall 12.

The upper portion of the Wall 12 is pro'videdwi'th a plurality ofdiseharge openings, 'here shown as four in number, indicated by'thereference'numeral 31, and the skirt '29 *of the deflector plate 27 isprovided with the same number of discharge openings as at 32 which, whenthedefiectorplate ,27 is in place extending over and spaced fromthebottom 24 of the cup'member 23 and enclosing thecup member 23, are inregistry with the discharge openings 31 in'the upper portion of the wall12 and provide means for discharging liquid fromthe space betweenthe'cupmember 23 and deflector plate 27.

As shown most clearly in Figure 3 and indicated 'by the referencenumeral 33, each of the discharge-openings 31 is provided'with a knifeedge to limit the turbulence of the fluids=being discharged fromthe'space between the bottom 24 of the cup member 23 and the inner faceof thedeflector plate 27.

In operation, the sump pump of the present invention is used, as shownin Figure 1, for instance, to draw the air: from a drum .15 so thatfluid may be admitted through a conduit asat 34 to the drum 15 for thepurposes of filling the drum. Fluid under relatively high pressure isintroduced to the body 10 through the conduit 22 and passes through the'body in the direction indicated by the arrows in'Figures 2 and 3 tocreate an area of low pressure'or suction at the vortex of the stream'offluid .flowingthrough the spiral passage and upwardly through thedischarge orifice 26 in the cup member 23. The movement of the fluidfrom the inlet '18is'in ahelical path in the spiral passage 17 and inthe well 16 and thence outwardly from the discharge orifice '26to thespace between the deflector plate 27 and the cup *member 23. Thiscreates an area of low pressure centrally of the Well 16 and'causesfluids to be drawn upwardly through the pipe 14 into the well towhere'they are mixed and'disch-ar-ged with the fluid admitted throughthe. inlet =18.

Reverting to the form of Figures 5 and 6, the sump pump comprises anupstanding body 41-having an up right wall 42 extending about theperimeter at its upper end. A deflector plate 43 having a flat top 43from which depends a skirt 55 is positioned so that it closes- 3 Thebody 41 is provided with a well 47 disposed concentrically with respecttotthe inlet passage 44 and with for connecting the second inlet 49 to asource of fluid under pressure as in the embodiment shown in Figures 1to 4 inclusive.

A cup member 50 having a flatbottom 51 and an upstanding rim 52extending around the boundary of the bottom 51 is positioned sothat thebottom 51 bridges and 1 closes the spiral passage 48with ,the rim 52engaging the inner surfaceof the lower portion of the upright wall 42.The bottom 51 of the cup member 50 is provided with a discharge orifice53 disposed concentrically with respect to the inlet passage 44 in thewell 47.

The upper portion of the wall 42 is provided with a plurality ofdischarge openings 54 for the discharge of fluid from the space betweenthe bottom 51 of the cup member 50 and the cover 43.

In use of the pump of Figures and 6, the nipple, 46

may be connected to a drum by other conduit means, as in thefirstembodiment shown in Figures 1 and 2, and fluid under pressure may beadmitted through the passage 49. The fluid flowing into the well andaround the spiral passage 48 is discharged upwardly throughthe dischargeorifice in the cup member 50 and due to its movement in a helical path,forms a low pressure area adjacent the inner end of the inlet passage,thereby effecting the suction through the nipple 46 and any attachedconduit. The deflector plate 43 is positioned so that the flat top 43'is spaced from the cup member bottom 51 with the skirt 55 engaging theinner surface of the upper portion of the upright wall 42. Dischargeopenings 56 are provided in the skirt 55 in registry with the dischargeopen ings54.

Referring to the form of Figure 7, the sump pump comprises an upstandingbody 61 having an inlet passage 62 in its lower end and a deflectorplate 63 extending over its open upper end, there being provided anotherinlet passage 64 centrally of the deflector plate 63.

An upright wall 65 extends around the perimeter of the upper end of thebody 61.= A well 66 is provided in the body 61 adjacent the inner endand terminating end of the inlet passage 62 and is arrangedconcentrically with respect to the inlet passage 62. The portion of thebody 61 above the top of the well 66 is provided with a spiral passage67 extending around the upper end of the well 66 and having one endterminating in a tangentially disposed second inlet 68 which is incommunication with the exterior of the body 10..

The same means which connects the inlet 18 of the body m 2. source offluid under pressure is used to connect the inlet 68 of the body 61,although not here illustrated.

A cup member 69 having a bottom 70 and an upstanding rim 71 extendingabout the boundary of the bottom 70 is positioned so that the bottom 70bridges and closes the spiral passage 67 with the rim 71 engaging theinner surface of the lower portion of the upright wall 65. The bottom 70of the cup member 69 is provided with a discharge orifice 72 disposedconcentrically with respect to the inlet passage 62 in the lower end ofthe body 61 and also concentrically with respect to the inlet passage 64which is'provided in the deflector plate 63.

The deflector plate 63 has a flat top 63'-from which depends a skirt63", the deflector plate being positioned so that the flat top 63' isspaced from the cup member bottom 70 with theskirt 63"of the deflectorplate 63 engaging the inner surface of the upper portion of the uprightwall 65. Depending from the top 63" and extending about the end of thepassage 64 adjacent the aforesaid top, is a lip 64' for preventingmoisture from dripping into the suction area.

In the form of Figure 7, the body 61 and the deflector plate 63 each isformed with reduced portions 73 and 74 respectively, through whichextend the respective inlet passages and to which are attached bythreads, the nipples 75 and 76 respectively, for connecting each of theinlet passages 62 and 64 to a space'to be evacuated, such as the drumshown in Figure .1. A conventional valve 77 is attached to each of thenipples 75 and 76 for controlling the flow of fluid to the inletpassages 62 and 64.

The form of Figure 7 is similar in use to that previously described withthe forms of Figures 1 to 4 inclusive, and Figures 5 and 6.' In use ofthe pump of Figure 7, when fluid under pressure is admitted through theinlet passage 68 and is discharged through the discharge orifice 72, itcreates a low pressure area in the vicinity of the inner ends of each ofthe inlet passages 62 and 64. Either one of the latter may beselectively connected to a space to be evacuated and the suction createdin the low pressure area adjacent the inlet passages 62 or 64 will causefluid to be drawn from the space to be evacuated and dis charged throughthe registering discharge openings 78 and 63"? providedtin the upright,wall 65 and skirt 63" respectively.

What is claimed is:

1. A sump pump comprising an upstanding body provided with a wellbetween the upper and lower ends and having aninlet passage in one ofsaid ends, said inlet passage beingadapted to be connected to a closedspace 4 means on said spiral passage inlet for attachment to a source offluid under pressure, a deflector plate bridging the upper end of saidbody and closing said cup member, and discharge means onsaid deflectorplate.

2. A sump pump comprising an upstanding body provided with a wellbetween the upper and lower ends and having an inlet passage on each. ofthe upper and lower ends, each of said inlet passages being adapted tobe connected to a closed space to be evacuated, there being formed inthe portion of said body above the top of said well a spiral passageextending therearound and having one end terminating in a tangentiallydisposed inlet in communication with the exterior of said body andhaving the other end in communication with said well, a cup memberincluding a flat bottom positioned so that the bottom bridges and closesthe spiral passage containing portion of said body, said cup memberbottom having a discharge orifice in communication with the other end ofsaid spiral passage, means on said spiral passage inlet for attachmentto a source of fluid under pressure, a deflector plate bridging theupper endof said body and closing said cup member, and discharge meanson said deflector plate.

3. A sump pump comprising an upstanding body having an inlet passageextending inwardly from the lower end thereof, and adapted to beconnected to a closed space to be evacuated, said body being providedwith a well in the portion of said body adjacent the terminating pointof said inlet passage, there being formed in the portion of said bodyabove the top of said well a spiral passage extending therearound andhaving one end terminating in a tangentially disposed inlet incommunication with the exterior of said body and having the other end incommunication with said well, a cup member in cluding a fiat bottompositioned so that the bottom bridges and closes the spiral passagecontaining portion of said body, said cup member bottom having adischarge orifice in communication with the other end of said spiralpassage, means on said spiral passage inlet for attachment to a sourceof fluid under pressure, a deflector plate bridging the upper end ofsaid body and closing said cup member, and discharge means on saiddeflector plate.

4. A sump pump comprising an upstanding body having an inlet passageextending inwardly from the lower end thereof and an upright wallextending about the perimeter of the upper end thereof, said inletpassage adapted to be connected to a closed space to be evacuated, saidbody being provided with a well in the portion of said body adjacent theterminating point of said inlet passage, there being formed in theportion of said body above the top of said well a spiral passageextending therearound and having one end terminating in a tangentiallydisposed inlet in communication with the exterior of said body andhaving the other end in communication with said wall, a cup memberincluding a flat bottom and an upstanding rim extending about theboundary of said bottom positioned so that the bottom bridges and closesthe spiral passage containing portion of said body with the rim engagingthe inner surface of the lower portion of the upright wall of said body,said cup member bottom having a discharge orifice in communication withthe other end of said spiral passage, means on said spiral passage inletfor attachment to a source of fluid under pressure, and a deflectorplate including a flat top and a skirt depending from said toppositioned so that the top is spaced from said cup member bottom withthe skirt engaging the inner surface of the upper portion of saidupright wall, there being at least one discharge opening in the upperportion of said upright wall and a discharge opening in said skirt inregistry with said discharge opening.

5. A sump pump comprising an upstanding body having an inlet passageextending inwardly from the lower end thereof and an upright wallextending about the perimeter of the upper end thereof, said inletpassage adapted to be connected to a closed space to be evacuated, saidbody being provided with a well in the portion of said body adjacent theterminating point of said inlet passage, there being formed in theportion of said body above the top of said well a spiral passageextending therearound and having one end terminating in a tangentiallydisposed inlet in communication with the exterior of said body andhaving the other end in communication with said well, a cup memberincluding a flat bottom and an upstanding rim extending about theboundary of said bottom positioned so that the bottom bridges and closesthe spiral passage containing portion of said body with the rim engagingthe inner surface of the lower portion of the upright wall of said body,said cup member bottom having a discharge orifice in communication withthe other end of said spiral passage, means on said spiral passage inletfor attachment to a source of fluid under pressure, a deflector plateincluding a flat top and a skirt depending from said top positioned sothat the top is spaced from said cup member bottom with the skirtengaging the inner surface of the upper portion of said upright well,there being at least one discharge opening in the upper portion of saidupright wall and a discharge opening in said skirt in registry with saiddischarge opening, said deflector plate being provided with anotherinlet passage extending inwardly thereof and adapted to be connected toa closed space to be evacuated.

6. A sump pump comprising an upstanding body having an upright wallextending about the perimeter of the upper end thereof, said body beingprovided with a well between the upper and lower ends, there beingformed in the portion of said body above the top of said well a spiralpassage extending therearoun-d and having one end terminating in atangentially disposed inlet in communication with the exterior of saidbody and having the other end in communication wtih said well, a cupmember including a flat bottom and an upstanding rim extending about theboundary of said bottom positioned so that the bottom bridges and closesthe spiral passage containing portion of said body with the rim engagingthe inner surface of the lower portion of the upright wall of said body,said cup member bottom having a discharge orifice in communication withthe other end of said spiral passage, means on said spiral passage inletfor attachment to a source of fluid under pressure, and a deflectorplate including a flat top and a skirt depending from said toppositioned so that the top is spaced from said cup member bottom withthe skirt engaging the inner surface of the upper portion of saidupright wall, there being at least one discharge opening in the upperportion of said upright wall and a discharge opening in said skirt inregistry with said discharge opening, said deflector plate beingprovided with another inlet passage extending inwardly thereof andadapted to be connected to a closed space to be evacuated.

References Cited in the file of this patent UNITED STATES PATENTS1,658,797 Charette et al Feb. 14, 1928 2,639,084 MacKenzie May 19, 19532,642,895 Bertin et al. June 23, 1953

